A sigificant part of those higher sugars is maltose. That's a glucose dimer. I suspect the rest of the higher sugar component is significanly glucose n-mers. Nevertheless, fructose is ~1.2 times as sweet as sucrose and glucose is ~0.8 times as sweet. That means there should be no significant difference in the development of NASH between groups consuming either sugar exclusively, other than possibly the 10% difference.
What’s the significance? This is quibling. Whether it is almost a 5/4 ratio of fructose to glucose, or almost a 4/3 ratio, overall excess fructose tends to hepatic de novo lipogenesis.